PORT JERVIS — A Port Jervis man has been charged with selling heroin and assaulting a police officer.Port Jervis police arrested Kyle Conklin, 21, June 27 after investigating reports of drug activity near Prospect Street and Neversink Avenue in the city’s 2nd Ward. Conklin fled police, leading them on a lengthy foot chase and putting up a struggle, police Chief Bill Worden said in a press release. A police officer was injured during the arrest, Worden said.Conklin was charged with criminal sale of a controlled substance and assaulting a police officer, both felonies; resisting arrest, criminal possession of a controlled substance and criminal possession of stolen property, misdemeanors; and unlawful possession of marijuana, a violation. Conklin also was held on a City Court bench warrant for failure to appear on a third-degree assault charge. He was arraigned in Port Jervis City Court and sent to Orange County Jail without bail, pending a later court appearance. The injured officer was treated at Bon Secours Community Hospital and is recovering, Worden said.Gittel Evangelist